Other
The Big Picture Book of Viruses
This site has a catalog of all known viruses, including a picture of each, structure, family, hosts, and more.
Dartmouth College
Dartmouth College: Anatomy of a Virus
Excellent explanation of the structure of a virus. Includes graphics and a good explanation of viruses.
City University of New York
The World of Cells: Viruses
Alive or not, viruses are introduced in an easy to follow essay that explains many basic concepts.
Dartmouth College
Dartmouth College: Retroviruses
A good description of a particular family of viruses. Of interest due to the fact that AIDS is probably caused by a retrovirus.
Dartmouth College
Dartmouth College: Epidemic: Rna Viruses
A good page devoted to the RNA family of viruses that differ slightly from standard DNA viruses. Discusses the difference and characteristics of such viruses.
CK-12 Foundation
Ck 12: Biology: Virus Characteristics
[Free Registration/Login may be required to access all resource tools.] Introduction to the characteristics of viruses.
Dartmouth College
Dartmouth College: Epidemic: The Origin of Viruses
A very good history that covers the discovery of viruses and their basic characteristics. Includes short biographical information on some of the scientists who contributed to the study.
CK-12 Foundation
Ck 12: Biology: Viruses Study Guide
Explore and review the structure and function of viruses.
Other
Merlin's Academy: Chicken Flu
A very good introduction to viruses and their existence. Good graphics help with the discussion.